#region License
//-----------------------------------------------------------------------
// <copyright>
// The MIT License (MIT)
// 
// Copyright (c) 2014 Kirk S Woll
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
// </copyright>
//-----------------------------------------------------------------------
#endregion

using System.Text;

namespace WootzJs.Compiler
{
    public class StringEscaper
    {
        public static string EscapeString(string s, bool isChar)
        {
            var builder = new StringBuilder();
            for (var i = 0; i < s.Length; i++)
            {
                var c = s[i];
                switch (c)
                {
                    case '\n':
                        builder.Append("\\n");
                        break;
                    case '\r':
                        builder.Append("\\r");
                        break;
                    case '\t':
                        builder.Append("\\t");
                        break;
                    case '\\':
                        builder.Append("\\\\");
                        break;
                    case '"':
                        if (isChar)
                        {
                            builder.Append("\"");
                        }
                        else
                        {
                            builder.Append("\\\"");
                        }
                        break;
                    case '\'':
                        if (isChar)
                        {
                            builder.Append("\\'");
                        }
                        else
                        {
                            builder.Append("'");
                        }
                        break;
                    default:
                        builder.Append(c);
                        break;
                }
            }
            return builder.ToString();
        } 
    }
}
